Add: Room 1308, Building 4, Haichuang Technology Center, No. 1288, Wenyi West Road, Yuhang District, Hangzhou City, Zhejiang Province, China
Search
BESS 125KW 261kWh Lithium Battery Energy Storage Cabinet
01
02
04
05
06
1/6
BESS 125KW 261kWh Lithium Battery Energy Storage Cabinet
Power Conversion System (PCS): 125KW PCS providing 400V three-phase AC output.
Energy Capacity: 261KWh
Battery Technology: Lithium Iron Phosphate (LiFePO₄)
Lifespan: >6000 Cycles @ DOD 90%
Cooling System: Liquid-cooling system
Operating Temperature: -25°C to 55°C
Communication Protocols: Ethernet, Modbus, CAN, RS485
Support Parallel Up to 8 Units (1000 KW)
Protection: IP55 Waterproof & Dustproof
Certification: IEC, CE, UN38.3, MSDS, EN50549
MECC Liquid Cooling 125KW PCS + 261KWH Battery Energy Storage System
The 125kw+261kwh liquid -cooled Energy Cube utilizes an independent iquid cooling system, achieving higher energy density and cooling
capacity within a compact design. It offers high efficlency, low noise, safety, reliability, and easy scalabilty. Whenintegrated with PCS (Power Conversion Systems), it canregulate grid voltage, correct three -phase imbalance, and manageharmonics, enhancing power quality.
Featuring a high-performance integrated 125kW PCS, this cabinet provides Static Var Compensation (SVG) and harmonics suppression, improving the power quality of industrial microgrids while ensuring a <10ms seamless transition between on-grid and off-grid modes.
Detailed Product Features:
1. High-Efficiency LiFePO₄ Battery Technology
Delivers a long lifespan, enhanced safety, and high energy density
Maintains a 90% Depth of Discharge (DoD) for maximum energy utilization
2. Intelligent Energy Management System (EMS)
Supports multiple operating modes, including peak shaving, time-shifting, and emergency backup
Real-time monitoring and remote management capabilities
3. Independent Liquid Cooling
Features liquid cooling design with low noise operation at <75dB.
4. Advanced Safety & Protection Features
Optional AFCl to effectively prevent fire risks caused by arc faults, ensures system safety.
Multi-layer Protection: Supports battery health alerts and multi-layer protection mechanisms, ensures safety and stability during operation.
5. Easy Installation
Cost-effective Installation: Plug and play pre-assembled simplifies on-site setup. saves time and labor.
By utilizing high-density cells, the 261kWh BESS increases total energy by 8% within the same 1.5m² footprint compared to standard 241kWh models, achieving a higher Energy-to-Space ratio for space-constrained urban facilities.
Facing high energy prices and growing demand for energy independence, an Estonian factory adopted five MECC ECO-E233LS cabinets with an STS1000 smart ransfer cabinet and three Autarco PV inverters. The on-grid self consumption system allows daytime solar charging and night time use, maximizing renewable utilization and reducing grid reliance.
With A -powered EMS and modular all-in-one design, helps industrial clients achieve stable power supply, lower electricity costs, and smarter energy management.
FAQ
What are the core specifications of the 125kW + 261kWh PCS liquid-cooled commercial & industrial energy storage cabinet?
This cabinet integrates a 125kW high-efficiency PCS (Power Conversion System), 261kWh lithium iron phosphate (LiFePO₄) battery pack, intelligent BMS (Battery Management System), and advanced liquid-cooling temperature control system. Its nominal continuous discharge power is 125kW, rated energy is 261kWh, and it adopts a high-voltage DC design (300V-800V) for commercial and industrial scenarios. Note: This cabinet cannot be directly connected to photovoltaic (PV) panels; it needs to be matched with a dedicated PV inverter for energy input from solar systems.
Why can't this energy storage cabinet be directly connected to photovoltaic panels?
This 125kW + 261kWh PCS liquid-cooled cabinet is designed as a dedicated energy storage unit, not an integrated PV-storage system. It lacks the dedicated PV charge controller and PV-side interface required for direct PV connection. To use it with photovoltaic systems, you must first connect the PV panels to a professional PV inverter (to convert DC power from PV panels into stable AC/DC power), and then connect the PV inverter to this energy storage cabinet for energy storage and conversion. Direct connection will cause equipment damage or system failure.
What are the advantages of the liquid-cooling temperature control system in this cabinet?
The cabinet adopts an advanced liquid-cooling temperature control system, which has obvious advantages over traditional air-cooling: ① More efficient heat dissipation: It can quickly and evenly reduce the temperature of the battery pack and PCS, ensuring stable operation under high-power long-term operation (125kW continuous discharge); ② Better temperature uniformity: The temperature difference between battery cells is controlled within ±2℃, which effectively extends battery life and improves system stability; ③ Lower noise: No large ventilation fans, suitable for industrial parks and commercial areas with noise requirements; ④ Adapt to high-temperature environments: Can maintain stable operation in high-temperature industrial scenarios (up to 60℃ ambient temperature).
Can the MECC 125kW/261kWh BESS support a factory with heavy motor starts?
Yes, the MECC 125kW/261kWh system is engineered to handle industrial inductive loads, including heavy motor starts. However, the successful operation depends on the PCS (Power Conversion System) overload capacity and the use of Soft Starters or Variable Frequency Drives (VFDs) within your facility.
Handling In-rush Current:
Standard motors can draw 5 to 7 times their rated current during startup (In-rush current). For a large motor, this spike can momentarily exceed the 125kW rated power of the BESS. Our integrated 125kW PCS is designed with a short-term overload capability (typically 110%-120% for 1 minute, and up to 150% for 10 seconds), allowing it to buffer these transient surges effectively.
Voltage Stabilization & Grid Support:
In On-Grid Mode, the BESS performs Peak Shaving and Voltage Support. When a heavy motor starts, the BESS discharges instantaneously to prevent a significant voltage dip from the grid, protecting other sensitive electronic equipment in your factory from brownouts.
Off-Grid (Backup) Considerations:
In Off-Grid Mode, the BESS acts as the primary voltage source. To ensure stability when starting large inductive loads:
Soft Starters/VFDs: We strongly recommend using VFDs or Soft Starters to limit the starting current to 2-3x the rated current.
Sizing Rule: The total starting surge should stay within the PCS's peak power limit. Our 125kW system can typically support a single direct-on-line (DOL) start for motors up to 30-45kW, or much larger motors if equipped with a VFD.
High-Density 261kWh Buffer:
The 261kWh energy capacity, powered by high-capacity 314Ah cells, provides a deep energy buffer. This ensures that even with frequent high-torque starts throughout the day, the battery maintains a stable voltage curve and sufficient "State of Charge" (SOC) to handle the next demand spike without degrading the cells.
